1316211571 has 2 divisors, whose sum is σ = 1316211572. Its totient is φ = 1316211570.

The previous prime is 1316211511. The next prime is 1316211577. The reversal of 1316211571 is 1751126131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1316211571 - 2⁷ = 1316211443 is a prime.

It is a super-3 number, since 3×1316211571³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1316211577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658105785 + 658105786.

It is an arithmetic number, because the mean of its divisors is an integer number (658105786).

Almost surely, 2^1316211571 is an apocalyptic number.

1316211571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316211571 is an equidigital number, since it uses as much as digits as its factorization.

1316211571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 28.

The square root of 1316211571 is about 36279.6302489427. The cubic root of 1316211571 is about 1095.9108705625.

The spelling of 1316211571 in words is "one billion, three hundred sixteen million, two hundred eleven thousand, five hundred seventy-one".